/**
 * Copyright 2020 Baidu Inc. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

export default req => {
    const {type} = req.query;
    const response = new Response(`hparams\n${type}`);
    switch (type) {
        case 'tsv':
            response.headers.set('Content-Type', 'text/tab-separated-values');
            break;
        case 'csv':
            response.headers.set('Content-Type', 'text/comma-separated-values');
            break;
    }
    return response;
};
